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型号和牌号都是焊条的代号,它们之间既有区别又有联系。掌握这两种代号的含意,有助于正确选用和标注焊条。我国压力容器行业经常使用的焊条国家标准有GB983-85《不锈钢焊条》、GB5117-85《碳钢焊条》、GB5118-85《低合金钢焊条》,它们都是等效采用美国ANSI/AWS相应的焊条标准而制定的。焊条国家标准对焊条规定了最基本的要求如型号划分,技术要求、试验方法、检验规则、包装、标志和质量证明书。型号是表示符合国家标准焊条的一种代号,GB5117-85和GB5118-85的型号用字母“E”和四位连续数字表示熔敷金属的化学成
Models and brands are the code of the welding rod, there are differences between them as well as the connection. Grasp the meaning of these two codes, help to properly select and mark the electrode. China’s pressure vessel industry often used electrodes national standards GB983-85 “stainless steel electrode”, GB5117-85 “carbon steel electrode”, GB5118-85 “low alloy steel electrode,” they are equivalent to the US ANSI / AWS corresponding Electrode standards and developed. Welding electrodes national standards for the provisions of the most basic requirements such as model classification, technical requirements, test methods, inspection rules, packaging, marking and quality certificate. Model is that in line with a national standard electrode of a code, GB5117-85 and GB5118-85 models with the letter “E” and four consecutive figures that the deposited metal chemical